66d361bd29
Descriptor sets/pools are known to be troublesome as it doesn't match how GPUs work, or how application want to work, adding more complexity than needed. This results is quite an overhead allocating and deallocating descriptor sets. This PR will use descriptor buffers when they are available. Most platforms support descriptor buffers. When not available descriptor pools/sets will be used. Although this is a feature I would like to land it in 4.5 due to the API changes. This makes it easier to fix issues when 4.5 is released. The feature can easily be disabled by setting the feature to false if it has to many problems. Pull Request: https://projects.blender.org/blender/blender/pulls/138266
76 lines
1.5 KiB
C++
76 lines
1.5 KiB
C++
/* SPDX-FileCopyrightText: 2022 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup gpu
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*/
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#pragma once
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#include "BLI_utility_mixins.hh"
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#include "gpu_uniform_buffer_private.hh"
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#include "vk_buffer.hh"
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namespace blender::gpu {
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class VKUniformBuffer : public UniformBuf, NonCopyable {
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VKBuffer buffer_;
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/**
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* Has this uniform data already been fed with data. When so we are not allowed to directly
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* overwrite the data as it could still be in use.
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*/
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bool data_uploaded_ = false;
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public:
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VKUniformBuffer(size_t size, const char *name) : UniformBuf(size, name) {}
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void update(const void *data) override;
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void clear_to_zero() override;
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void bind(int slot) override;
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void bind_as_ssbo(int slot) override;
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/**
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* Unbind uniform buffer from active context.
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*/
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void unbind() override;
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VkBuffer vk_handle() const
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{
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return buffer_.vk_handle();
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}
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inline VkDeviceAddress device_address_get() const
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{
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return buffer_.device_address_get();
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}
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size_t size_in_bytes() const
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{
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return size_in_bytes_;
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}
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void ensure_updated();
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/**
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* Reset data uploaded flag. When the resource is sure it isn't used, the caller can call
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* reset_data_uploaded so the next update can use ReBAR when available.
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*/
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void reset_data_uploaded()
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{
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data_uploaded_ = false;
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}
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private:
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void allocate();
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};
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BLI_INLINE UniformBuf *wrap(VKUniformBuffer *uniform_buffer)
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{
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return static_cast<UniformBuf *>(uniform_buffer);
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}
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} // namespace blender::gpu
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